US 1550305 A
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Description (OCR text may contain errors)
Aug 18, 1925. 1,550,305
H. c. DREISCHERF VALVE OPERATING NOZZLE FOR AIR HOSE Filed March 31. 1922 5 Fae 6772 EH89 6: 77 fiabcfierf 12 which may consist of ordinary inch 7 the inner end of the hollow cylindrical cas-' ing 14, thus forming a nipple 16 of-such diameter as to fit slidingly into the aperture 6 in the air hose fitting, and of such length that when fully inserted it will open up the slit 9 of the dia hragm 8 so that air may pass from the 'tting to the tube 12. An annular shoulder 18 is formed by the inner end of casing 14, and this formsa stop for limiting the distance to which the nipple can be inserted into the fitting. Lugs 20 project from opposite sides of the casing near the inner end thereof, said lugsforming ahandle adapted to be grasped by the fingers of the user, as illustrated in Figure 1. In practice, under ordinary conditions my devlce will be absent from the air hose fitting, for the most common use for the compressed air is thefilling of tires. When, however, a jet of air is wanted for any purpose, the operator simply inserts the nipple 16 into the orifice 6 in the cap of the air hose fitting, bringing the shoulder 18 into engagement with the cap. When the nipple is inserted this far, it will open up the slit 9 in the diaphragm 8 and hence there will be a free passage from the air hose to the inner tube 12 of my device. Consequently compressed air will issue from the nozzle in the form of a jet which may be used for various purposes as hereinabove suggested. The configuration of the standard fitting 1 is such that it nay be readily contained within the palm of the hand, and in my device the handles or lugs 20 are so placed that they may be readily grasped by the first and second finger of the hand when the tool is in operative position. By ref erence to Figure 1 it will be observed that when the two parts are in cooperative relation they may be readily held there by one hand, the advantage beingtha-t the operator has his other hand free for lifting cushions or doing such other work as may be necessary for the project in hand. When through requiring the jet, or if for any reason it is desired to temporarily shut off the flow of air, all that is necessary is to withdraw my device from the air hose fitting, whereupon the diaphragm 8 will automatically close and seal the opening. Thus it will be evident that my device furnishes a most simple and yet a very effective tool for rendering the ordinary air hose fitting available where a jet of air is wanted.
in the hollow 0 I do not wish to be restricted to the precise construction of the device to anygreater extent than called for by the appended claims. It will be evident that my entire device may be formed of a single piece of metal if desired. In other words, all parts may be integral with each other, although for reasons of manufacture I prefer to employ an ordinary piece of pipe for the inner portion and a separate piece for the casing. It will be understood, of course, that when two parts are thus employed, they will be rigidly fastened together by any appropriate means.
Having thus described my invention,,what I claim as new and desire to secure by Letters Patent is: p
1. A hand tool for use in connection with a valve of the type used for compressed air hose and havin a casing adapted to be held in the hollow of the hand and provided with a self-closing, flexible, aperture-d diaphragm which opens when repulsed from the front; said tool being tubular. and having finger lugs projecting from opposite sides near the butt end whereby the tool may be grasped in the'fingers of the same hand which holds the valve, the forward end of the device constituting a nozzle and the butt end serving to 'enter the aperture in the valve casing for acting upon the diaphragm for open-- ing it.
2. A hand tool for use in connection with a valve of the type used for compressed air hose and havin a casin adapted to be held the han and provided with a self-closing, flexible, apertured diaphragm which opens when repulsed from the front; said tool beingtubular and having finger lugs projecting from opposite sides between the ends of the device, said lugs being located nearer to the butt end than, to the forward end whereby the, forward end constitutes a nozzle and the butt end projects sufficiently to pass through the aperture in the valve casing and act upon the diaphragm within, the butt end of the device being of reduced external diameter to thereby form a shoulder for abutting the outer end of the valve casing to form a stop for limiting the distance to which the tool may be inserted into the valve casing.
3. In a device of the class described, the combination of a pipe, a casing enclosing said pipe, the pipe projecting beyond the casing at one end to form a reduced nipple, and oppositely projecting lugs extending laterally in opposite directions from the easing at a point'near the nipple.
In witness whereof, I have hereunto subscribed my name.
HENRY C. DREISCHERF.